<template>
    <div v-if="modelValue">
        <el-image v-if="typeof modelValue == 'string'" :src="modelValue" fit="cover"
            class="w-[100px] h-[100px] rounded border mr-2 mt-2"></el-image>
        <div v-else class="flex flex-wrap">
            <div class="relative mx-1 mb-2 w-[100px] h-[100px]" v-for="(url, index) in modelValue" :key="index">
                <el-icon class="absolute right-[5px] top-[5px] cursor-pointer bg-white rounded-full" style="z-index: 10;"
                    @click="removeImage(url)">
                    <CircleClose />
                </el-icon>
                <el-image :src="url" fit="cover" class="w-[100px] h-[100px] rounded border mr-2">
                </el-image>
            </div>

        </div>
    </div>

    <div class="choose-image-btn" @click="open">
        <el-icon :size="25" class="text-gray-500">
            <Plus />
        </el-icon>
    </div>
    <el-dialog title="选择图片" v-model="dialogVisible" width="80%" top="5vh">
        <el-container class="bg-white rounded" style="height: 70vh;">
            <el-header class="image-header">
                <el-button type="primary" size="small" @click="handleOpenCreate">
                    新增图片分类</el-button>

                <el-button type="warning" size="small" @click="handleOpenUpdate">
                    上传图片</el-button>
            </el-header>
            <el-container>
                <ImageAside ref="ImageAsideRef" @change="handleAsideChange" />
                <ImageMain :limit="limit" openChoose ref="ImageMainRef" @choose="handleChoose" />
            </el-container>
        </el-container>

        <template #footer>
            <span>
                <el-button @click="close">取消</el-button>
                <el-button type="primary" @click="submit">确定</el-button>
            </span>
        </template>
    </el-dialog>
</template>


<script setup>
import { ref } from "vue"
import ImageAside from '@/components/ImageAside.vue'
import ImageMain from '@/components/ImageMain.vue'
import { toast } from '@/composables/util'


const dialogVisible = ref(false)

const open = () => dialogVisible.value = true
const close = () => dialogVisible.value = false

const ImageAsideRef = ref(null)


const handleOpenCreate = () => ImageAsideRef.value.handleCreate()

const ImageMainRef = ref(null)
const handleAsideChange = (image_class_id) => ImageMainRef.value.loadData(image_class_id)

const handleOpenUpdate = () => ImageMainRef.value.openUpdateFile()


const props = defineProps({
    modelValue: [String, Array],
    limit:{
        type:Number,
        default:1
    }

})

const emit = defineEmits(["update:modelValue"])

let urls = []
const handleChoose = (e) => {
    urls = e.map(o => o.url)

}


const submit = () => {
    let value = []
    if(props.limit == 1){
        value = urls[0]
    } else{
        value = [...props.modelValue, ...urls]
        if(value.length > props.limit){
            return toast("最多还能选择" + (props.limit - props.modelValue.length) + "张")
        }
    }
    if (value.length) {
        emit("update:modelValue", value)
    }
    close()
}


// 轮播图移除
const removeImage = (url) => {
    emit("update:modelValue", props.modelValue.filter(u => u != url))
}

</script>



<style>
.image-header {
    border-bottom: 1px solid #eeeeee;
    @apply flex items-center;
}

.choose-image-btn {
    @apply w-[100px] h-[100px] rounded border flex items-center justify-center cursor-pointer hover:(bg-gray-100)
}
</style>